Details

Do you want to mount the Stellarvue R80 finderscope to a Stellarvue
CNC clamshell? Then you need the Stellarvue R80A. This set of dual
finderscope rings have an internal diameter of 3-7/8" and fit
perfectly to the clamshell. Mount the quick release plate, attach the
rings and add your finder. Using the supplied nylon-tipped stainless
steel collimation screws, align the finder with your scope's optics.
The safety stops insure your finder won't slide away on the dovetail
rail! When locked in place with the thumbscrews, your finder is good
for the night. Release it when it's time to pack up and the rings
will securely keep your alignment until your next observing session.